Shirley Horn has made several beautiful albums witch you can call high-end productions.
I got 7 albums of her and can recommend the following:
You Won't Forget Me from 1991,
Here's to Life from 1992,
You're My Thrill from 2001,
May the Music Never End from 2003, witch was her last album before she died.
Other albums from here are not bad either if you like old school jazz.